Pasteurizing.



E'. GETTELMAN.

PASTEURIZNG.

APPLICATION FILED NOV. 28, N11.

Patented Dec. 30, 1913.

UNITED STATES `FREDERICK GETTELMAN, F MILWAUKEE, WISONSIN..

I i ras'rnUnIzING.

To all 'wh om it may concern: i Be it known that I. 'FREDERICK Gn'r'rel.- MAN. a citizen of the United States, and resident of Milwaukee, in the county of Mil- -aukee and State-of lVisconsin, have invented certain new and useful improvements in Pasteurizing; and I do hereby declare that the following'is a full. clear, and exact description thereof.

The primary object of -m v invention is to increase the etiiciency and scope'of pasteurizing apparatus ingencral and particularly apparatus of that character such` as dcscribed and claimed in a patent issued to me for pastenrizing apparatus dated April 11.

1an. No. 989,141. Y

In a general way my improved appa 'atus embodies in its construction and `arrangement means for subjecting the bottled product. to successive interrupted immersions in water contained in separate vats. the water in each vatbeing at an initial predetermined temperature whereby said product is gradually brought to the exact pasteurizing temperature desired, at which temperature' it is sustained for a period of time and thereafter gradually lowered in temperature preparatory to being removed from the pasteurizing apparatus.

. Specific objects of my invent-ion are to provide means whereby open mouthed vessels containing the product to be pasteurized are maintained above the water-line in vsuch position that only the body of the bottles g water, the product being thus vented during the process ot' sterilization: to rovide protecting Shields for the bottles w iereby drippings of water or other oreign substance 40 are shed from said open-Ir outhed bottles; to provide means for controlling the temperature of the product during its travel from one vat to the other7 said means including indirect pre-heating and pre-cooling coils, provision beingr made for placing certain of the coils directly within the vats; to provide an endless conveyer chain having.r carriers, which'chain is supported above the water- .line at, all times, the carriers being arranged with respect to the water-line in the various vats to submerge the body of the vessels containing the product. to be sterilized, and to provide water supply pipes andv overflows l'or the various vats whereby the water-level therein will remain constant.

With the above objects in view theinven- Specification .of Letters Patent.

will be submerged as they travel through the,

Patented Dec. 30,1913.

Application filed November 28. 1911. Serial No. 662.871.

tion consistsin what is herein shown and described with reference to the accompanying illustrations and'subsequently claimed.

ln the drawings Figure 1 represents a diagram view of a pasteurizing apparatus embodying.r the features of my invention, and Fig. 2. a detail cri'is's-section of a fragment Aet' the vconveyer chain 'and suplliortingr means together with a portion of one of the carriers. the section being indicated by line 9 2 of'l"ig.1.

Referring by characters tothe drawings l 'indicates a housing' forming a chamber having a vertical openingv l therein that constitutes a well through which the pastcurized product is delivered to voperators above the `floor-line of the buildingr upon which the. housing is supported. the well being disposed at the forward end ot the chambera'nd' through which an endless chain con-' ve ver 3 passes. The conveyer chain is driven and supported by a series-ot pulleys 'to be. .hereinafter particularly mentioned mounted ivithin and exteriorly of' the chamber.

Suitably supported within the chambei -are a series of vats A, B. C. D. the vats being filled to a predetermined height with height of the ,water being controlled by overflow pipes G. 'lrack-rails 5a. 5b. and

series of 'vats and serve as longitudinal supporting guides for the chain conveyer. This chain conveyor is arranged to pass over a pulley 7 locate'd above the top-wall of the chamber. the chain being thereafter passed over a pulley 7 similarlylocated at the rear end of -said chamber. From thence the chain passes down thro'ugh an opening 2a at the..rear`end of the chamber bop over a pulley 8v located above the first vat A, from which point; itfis arranged to tra-vel forwardly and over the guide-rail 5 under a guide-pulley 8a 'and from thence said chain is inclined upwardly and is arranged to trave] over a pulley 9, bein'xg` also supported at :its inclined section between the pulleys 8 and 9, by an upwardly inclined section of the guide-'rail 5, that, parallels" the inclined thereafter passes downwardly over a pulley 10 that. is -disposed above the 'vat'.v B and' from thence it 'travels parallel to the waterline in saidvat and above the same to a guide-pulley 10a; being upwardly inclined at the rear endfthe vat- B where it passeswater from supply-pipes 4, 4. 4 4*. the

5c are disposed above the water-line of the stretch of said chain. 'The conveyer chain Aley 13 isdeflected downwardly by a gu1del pulley 12?, a stretch being then directed par# allel with vat D and over the same'. The endless conveyer then passes under a pulley 14 from which it travels upwardly through the well 2 tothe first pulley 7 whereby the cycle is completed.

From the foregoing it-will be seen that the endless chain conveyers thus pass in zig-zag manner back and forth over the series of vats, being alternately dropped and elevated as it enters and leaves each vat in order to immerse the bottled product in the vat. Water. VEach portion of the'bottled product is contained in a vessel 1:3,-g1'oups of which are assembled in a series of carriers15 that are pivotally suspended from rods 16, which rods are cal'rried by the chain conveyor, the rods being provided with antithe guide-rails.

By the above, described construction the several stretcliesffdI veyer are relierl lofsagging strain to which they would otherwisebe subjected and thus friction being red'lced to a minimum a proportionately less amount of power is re quired to operate the apparatus. Furthermore it is apparent that owing to the ar-v rangement of guide-rails which support the4 carriers 15 that the latter are always held in a position whereby they Iare submerged at a predetermined depth. By this arrangement the vessels or bottles l'containing the product can be submerged to the friction rollers 17 arranged to contact with proper depth so that` their necks are above the water-linc and can thus be open to the atmosphere without danger of injury to the contents thereof incidental to travel through the sterilizing li uid.

Each bottle-carrier 15 as secured thereto a shield 18 that is connected to thesupporting bails 15b`of the carrier and is disposed just above the open mouths of the vessels 'whereby they are protected and any water drippings or foreign matter that may drop upon the tray incidental to its travel is-dedeeted from the vented vessels whereby their contents will not he polluted. e.

As clearlyk shown in the diagram a heat regulator in the form of a coiled pipe l!)l is arranged in juxtaposition to the forward end of the first-vat A', which' coiled pipe parallels the vertical stretch a: of the conveyer chain between said vatand the second the aforesaid chain con' vat B, A similar.coi1,20, which, in this instance, is adaptdf'to receive acooling medium,'is mounted within the chamber in juxtaposition to the vertical stretch y of the conveyer chain that passes from the second vat B to the third vat C, the latter vat being provided with water which is designed as a cooling medium, being of slightly lower temperature than the water contained in'vat B, -which vat may be termedthe sterilizing vat and, for example', contains water at a temperature 'of approximately 149. The last vat D of the series Vmay be termed a coolingvaLt and contains water which may,

as ,shown,be held at a predetermined low temperature by a cooling medium that is introduced indirectly thereto through a coiled pipe 21. i

From the foregoing it will be apparent that in carrying out my improved method of pasteurizing that the product on entering j the chamber is approximately at atmospheric temperature and the vvessels eontainl ing the product being open to atmosphere as previously mentioned, said vessels are first submerged ,in vat. A, 'which contains water at a' desired .intermediate temperature whereby the product is raised in temperature gradually preparatory to being;r submerfed in 'the pasteurizing vat B. Before entering said vat the product is pre-heated in `its travel downwardly by` indirect radiation from the heating coil 19 andl thus in its travel from the first vat to the pasteurizing vat-the temperature of the product is held constant or Vslightly pre-heated. Hence there is no sudden rise in the temperature of the product as it is submerged into the liquid containing vat B. Pasteurizing is effected as the carrier containing\the product passes from the forward end to the rear end of vat B, and thereafter it is desirable to gradually cooly the pasteurized product. The initial pre-cooling is effected by indirect contact with the cooling medium introduced through' coil- 20. product is effected as it travels through vat C, the final vcooling' being accomplished incidental to the travel of the carrier through vat D, theliquid in which, as shown, is maintained at a predetermined temperature by the'cooling medium 21. The pasteurizing is now completed and the endless carrier Y i raisesthe product up through the well 2 to the floor-line of the building where said vproduct is unloaded in any desired manner.

While I have shown and described the ch mber as being provided-with four vats it is laapparent that this number may be diminished or increased in"accordanc'e with the conditions required with reference to the product. to be sterilized,'particular attentin being called to the fact that the product is pre-heated or pre-cooled by ar'tficial means incidental to its travel from one product is exposed to atmosphere. 15

.of a heating coil arranged'parallel with the i vat to the other, whereby siidden variations in temperature are avoided in the interrupted steps of bringing the product to a pasteurizing temperature and thereafter gradually cooling the saine, the said temperatureregulating means being introduced in any' desired form in the relative positions described and illustrated.V

It will also be observed that, as previously stated, the bottles or VeSSelScOntainingthe product are at no. time totally submerged but are held in such a position relative to the water-line in the vats that the sterilized and third vats, and vessel carriers inpivotal .ondrvertieal stretch of said union with-the conveyer; the combination irstmentioned vertical belt stretch, and a cooling coil arranged parallel with these'cbelt. A

2. .In a. pasteurizingapparatus having a series of va'ts arranged. one above the'other adapted t0y contain water at progressively higher temperatures to an intermediate `vat and progressively lower temperatures'froni said intermediate vat, an' endlessI conveyer arranged to travel parallel with the `water"- line of theiirst vat and -having a vertical stretch intermediate Aof the first and second fvats,'the conveyer beingl provided with asecond streth adapted to travel 'parallel with said *second vat andY provided with a second vertical stretch between said second and third v ats, and vessel carriers in pivotal union with the conveyer; the combination-of anindirect heating means arranged parallel i vvith 'the' first. mentioned vertical belt stretch, 'and an indirect cooli'ng'i'neans arranged parallel withith'e. second .vertical stretch of said belt.

In testimonythat Il claim theforegoing` I'have hereunto set my' hand at Milwaukee in the county ofA Mil-wai'ikee'- and State fof lVisconsin in the presnce'of two Witnesses.

vFREDERICK GETTELB'IAN lVitnesses GEO.. lV. YOUNG,

MAY Dowivizi'. 

